/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package servlet;

import ejb.BusinessLogicLocal;
import entity.Utente;
import java.io.IOException;
import java.util.List;
import javax.ejb.EJB;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Marco
 */
public class ServletGestUtenti extends HttpServlet {

    @EJB
    private BusinessLogicLocal businessLogic;

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        String op = (String) request.getAttribute("op");
        String mode = (String) request.getAttribute("mode");
        if (mode == null) {
        } else if (mode.equals("verifica")) {
            String idUtente = request.getParameter("idutente");
            businessLogic.cambiaPermessi(0, Long.decode(idUtente));
            RequestDispatcher rd = getServletContext().getRequestDispatcher("/ServletGestUtenti");
            request.setAttribute("op", "permessiUtente");
            request.setAttribute("mode", "verificaUtente");
            rd.forward(request, response);
        } else if (mode.equals("admin")) {
            String idUtente = request.getParameter("idutente");
            businessLogic.cambiaPermessi(1, Long.decode(idUtente));
            RequestDispatcher rd = getServletContext().getRequestDispatcher("/ServletGestUtenti");
            request.setAttribute("op", "permessiUtente");
            request.setAttribute("mode", "permessoUtente");
            rd.forward(request, response);
        } else if (mode.equals("utente")) {
            String idUtente = request.getParameter("idutente");
            businessLogic.cambiaPermessi(0, Long.decode(idUtente));
            RequestDispatcher rd = getServletContext().getRequestDispatcher("/ServletGestUtenti");
            request.setAttribute("op", "permessiUtente");
            request.setAttribute("mode", "permessoAmministratore");
            rd.forward(request, response);
        } else if (mode.equals("elimina")) {
            String idUtente = request.getParameter("idutente");
            businessLogic.cancellaUtente(Long.decode(idUtente));
            RequestDispatcher rd = getServletContext().getRequestDispatcher("/ServletGestUtenti");
            request.setAttribute("op", "permessiUtente");
            request.setAttribute("mode", "eliminato");
            rd.forward(request, response);
        }
        if (op.equals("permessiUtente")) {
            List<Utente> utenti = businessLogic.caricaUtenti();
            //HttpSession session = request.getSession();
            //String user = (String) session.getAttribute("nomeUtente");
            RequestDispatcher rd = getServletContext().getRequestDispatcher("/gest_utenti.jsp");
            request.setAttribute("utenti", utenti);
            rd.forward(request, response);
        }
    }   // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">

    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
